This
      case
      is
      to
      be
      distinguished
      from
      this
      Court's
      decisions
      in
      
        M.N.R.
      
      v.
      
      
      
        Parsons,
      
      [1984]
      C.T.C.
      352;
      84
      D.T.C.
      6345
      and
      
        Optical
       
        Recording
       
        Laboratories
      
      
      
      v.
      
        Canada,
      
      [1990]
      2
      C.T.C.
      524;
      90
      D.T.C.
      6647
      because
      the
      validity
      of
      the
      
      
      assessment
      is
      not
      challenged
      here.
      In
      each
      of
      those
      cases,
      the
      issue
      as
      to
      
      
      liability
      for
      income
      tax
      depended
      on
      the
      alleged
      invalidity
      of
      the
      assessment.
      
      
      In
      such
      a
      case,
      we
      have
      no
      doubt,
      the
      denial
      of
      liability
      can
      only
      be
      litigated
      by
      
      
      an
      appeal
      against
      the
      assessment
      as
      provided
      by
      the
      
        Income
       
        Tax
       
        Act,
      
      R.S.C.
      
      
      1952,
      c.
      148
      (am.
      S.C.
      1970-71-72,
      c.
      63)
      (the"Act").
      
      
      
      
    
      We
      are
      all
      of
      the
      view
      that
      the
      learned
      trial
      judge
      erred
      in
      characterizing
      this
      
      
      action
      for
      declaratory
      relief
      as
      an
      appeal
      against
      the
      assessment
      in
      issue.
      
      
      Rather,
      many
      of
      the
      declarations
      sought
      are
      to
      the
      effect
      that,
      in
      law,
      the
      debt
      
      
      confirmed
      by
      the
      assessment
      has
      been
      extinguished.
      
      
      
      
    
      An
      action
      for
      declaratory
      relief
      does
      not
      entirely
      fail
      simply
      because
      some
      of
      
      
      the
      declarations
      sought
      may
      not
      be
      available.
      It
      follows
      that,
      whatever
      he
      might
      
      
      properly
      have
      done
      as
      to
      specific
      declarations
      claimed
      had
      it
      been
      sought
      to
      
      
      strike
      them,
      the
      trial
      judge
      erred
      by
      entirely
      dismissing
      the
      action
      on
      the
      basis
      
      
      that
      the
      issues
      could
      have
      been
      dealt
      with
      by
      way
      of
      an
      appeal
      against
      the
      
      
      assessment
      and
      that
      the
      Trial
      Division
      was,
      therefore,
      without
      jurisdiction
      to
      
      
      entertain
      it.
      
      
      
      
    
      The
      appeal
      will
      be
      allowed
      with
      costs.
      Pursuant
      to
      subparagraph
      52(b)(ii)
      of
      
      
      the
      
        Federal
       
        Court
       
        Act,
      
      R.S.C.
      1985,
      c.
      F-7,
      the
      matter
      will
      be
      referred
      back
      to
      
      
      the
      Trial
      Division
      for
      a
      new
      trial.
      
      
      
      
    
          Appendix
        
        98.
        Therefor
        the
        Plaintiff
        seeks
        from
        this
        Honourable
        Court
        one
        or
        more
        of
        the
        
        
        following
        declarations,
        that
        is
        to
        say,
        a
        declaration
        that:
        
        
        
        
      
        (1)
        The
        receipt
        by
        the
        Defendant's
        agents,
        servants,
        employees
        or
        officials
        of
        
        
        the
        bank
        guarantee
        payable
        on
        demand
        was
        tantamount
        to
        payment
        of
        the
        
        
        income
        tax
        balances
        reflected
        in
        the
        Notice
        of
        Reassessment
        dated
        November
        
        
        10,
        1983
        and
        in
        the
        Notice
        of
        Reassessment
        dated
        January
        29,
        1985;
        
        
        
        
      
        (2)
        The
        making
        of
        the
        demand
        for
        payment
        upon
        the
        Bank
        of
        Montreal
        on
        
        
        September
        13,
        1984
        pursuant
        to
        the
        bank
        guarantee
        and
        Revenue
        Canada's
        
        
        decision
        not
        to
        accept
        payment,
        as
        between
        the
        Plaintiff
        and
        Defendant,
        
        
        constituted
        payment
        of
        the
        Reassessment
        amount
        or
        the
        amount
        claimed;
        
        
        
        
      
        (3)
        By
        making
        a
        demand
        for
        payment
        pursuant
        to
        the
        bank
        guarantee
        on
        
        
        September
        13,
        1984
        and
        choosing
        not
        to
        accept
        payment
        or
        cash
        but
        rather
        a
        
        
        renewal
        of
        the
        guarantee,
        the
        Defendant
        by
        Her
        agents
        etc.
        accepted
        all
        risks
        
        
        for
        so
        doing
        and
        effectively
        waived
        any
        recourse
        it
        might
        have
        against
        the
        
        
        Plaintiff
        and/or
        released
        or
        discharged
        the
        Plaintiff
        from
        any
        liability
        for
        or
        the
        
        
        payment
        of
        the
        Reassessment
        amount
        or
        the
        amount
        claimed;
        
        
        
        
      
        (4)
        The
        receipt
        by
        the
        Defendant's
        agents
        etc.
        of
        the
        bank
        guarantee
        was
        
        
        tantamount
        to
        the
        payment
        of
        the
        income
        tax
        balances
        reflected
        in
        [the
        said
        
        
        Notices
        of
        Reassessment]
        subject
        to
        a
        condition,
        namely
        demand,
        over
        which
        
        
        the
        Defendant,
        Her
        agents
        etc.
        had
        the
        entire
        control,which
        demand
        the
        
        
        Defendant
        through
        the
        default
        of
        Her
        agents
        etc.
        failed
        to
        make
        prior
        to
        the
        
        
        expiry
        of
        the
        bank
        guarantee
        as
        a
        result
        of
        which
        the
        Plaintiff
        is
        relieved
        from
        
        
        paying
        the
        [said]
        income
        tax
        balances;
        
        
        
        
      
        (5)
        The
        Defendant
        by
        Her
        agents
        etc.
        recognized
        The
        Dale
        Corporation
        as
        the
        
        
        person
        responsible
        for
        the
        payment
        of
        the
        [said]
        income
        tax
        balances
        and
        did
        
        
        thereby
        waive
        any
        recourse
        it
        may
        have
        had
        against
        the
        Plaintiff
        for
        the
        payment
        
        
        of
        the
        [said]
        income
        tax
        balances;
        
        
        
        
      
        (6)
        The
        Defendant
        by
        Her
        agents
        etc.
        recognized
        [Dale]
        as
        the
        person
        responsible
        
        
        for
        the
        payment
        of
        the
        [said]
        income
        tax
        balances
        and
        did
        thereby
        release
        
        
        the
        Plaintiff
        from
        any
        liability
        for
        the
        payment
        of
        the
        [said]
        income
        tax
        balances;
        
        
        
        
      
        (7)
        The
        Defendant,
        by
        Her
        agents
        etc.
        recognized
        [Dale]
        as
        the
        person
        responsible
        
        
        for
        the
        payment
        of
        the
        [said]
        income
        tax
        balances
        and
        entered
        negotiations
        
        
        and
        arrangements
        with
        [Dale]
        to
        the
        exclusion
        of
        the
        Plaintiff
        and
        did
        thereby
        
        
        waive
        any
        recourse
        it
        may
        have
        had
        against
        the
        Plaintiff
        for
        the
        payment
        of
        the
        
        
        [said]
        income
        tax
        balances;
        
        
        
        
      
        (8)
        The
        Defendant,
        by
        Her
        agents
        etc.
        recognized
        [Dale]
        as
        the
        person
        responsible
        
        
        for
        the
        payment
        of
        the
        [said]
        income
        tax
        balances
        and
        entered
        negotiations
        
        
        and
        arrangements
        with
        [Dale]
        to
        the
        exclusion
        of
        the
        Plaintiff
        and
        did
        thereby
        
        
        release
        the
        Plaintiff
        from
        any
        liability
        for
        the
        payment
        of
        the
        [said]
        income
        tax
        
        
        balances;
        
        
        
        
      
        (9)
        The
        Defendant,
        by
        Her
        agents
        etc.
        knew
        or
        ought
        to
        have
        known
        that
        the
        
        
        Plaintiff
        would
        rely
        on
        the
        conduct
        of
        the
        Defendant's
        agents
        etc.
        and
        based
        
        
        thereon
        would
        not
        pursue
        the
        court
        action
        which
        it
        had
        commenced
        against
        
        
        [Dale]
        to
        the
        Plaintiff's
        detriment
        and
        accordingly,
        the
        Defendant,
        Her
        agents
        
        
        etc.
        are
        estopped
        from
        acting
        upon
        [the
        said
        Notices
        of
        Reassessment];
        
        
        
        
      
        (10)
        The
        Defendant,
        by
        Her
        agents
        etc.
        knew
        or
        ought
        to
        have
        known
        that
        the
        
        
        Plaintiff
        would
        rely
        on
        [their]
        conduct
        and
        based
        thereon
        would
        not
        pursue
        the
        
        
        court
        action
        which
        it
        had
        commenced
        against
        [Dale]
        to
        the
        Plaintiff's
        detriment
        
        
        and
        accordingly,
        the
        Plaintiff
        is
        relieved
        from
        paying
        the
        [said]
        income
        tax
        
        
        balances;
        
        
        
        
      
        (11)
        The
        Defendant
        by
        Her
        agents
        etc.
        was
        trustee
        of
        the
        bank
        guarantee
        for
        the
        
        
        Plaintiffs
        benefit
        and
        failed
        to
        exercise
        that
        trusteeship
        in
        the
        manner
        of
        a
        
        
        reasonable
        and
        prudent
        trustee,
        and
        accordingly,
        the
        Defendant,
        Her
        agents
        
        
        etc.
        are
        estopped
        from
        acting
        upon
        [the
        said
        Notices
        of
        Reassessment];
        
        
        
        
      
        (12)
        The
        Defendant
        by
        Her
        Agents
        etc.
        was
        trustee
        of
        the
        bank
        guarantee
        for
        the
        
        
        Plaintiff’s
        benefit
        and
        failed
        to
        exercise
        that
        trusteeship
        in
        the
        manner
        of
        a
        
        
        reasonable
        and
        prudent
        trustee,
        and
        accordingly,
        the
        Plaintiff
        is
        relieved
        from
        
        
        paying
        the
        [said]
        income
        tax
        balances;
        
        
        
        
      
        (13)
        Revenue
        Canada
        had
        an
        equitable
        obligation
        as
        a
        fiduciary
        to
        handle
        the
        
        
        bank
        guarantee
        in
        a
        manner
        beneficial
        to
        the
        Plaintiff
        which
        obligation
        it
        
        
        breached,
        and
        accordingly,
        the
        Plaintiff
        is
        relieved
        from
        paying
        the
        [said]
        
        
        income
        tax
        balances;
        
        
        
        
      
        (14)
        The
        Defendant
        by
        Her
        agents
        etc.
        owed
        a
        duty
        to
        the
        Plaintiff
        to
        carefully
        
        
        handle
        the
        bank
        guarantee,
        which
        duty,
        to
        the
        Plaintiff's
        detriment,
        they
        failed
        
        
        to
        perform,
        and
        accordingly,
        the
        Plaintiff
        is
        relieved
        from
        paying
        the
        [said]
        
        
        income
        tax
        balances;
        
        
        
        
      
        (15)
        For
        the
        reasons
        stated
        in
        paragraphs
        (1)
        to
        (8)
        and
        paragraphs
        (13)
        and
        (14)
        
        
        above,
        the
        Defendant,
        Her
        agents
        etc.
        are
        estopped
        from
        acting
        on
        [the
        said
        
        
        Notices
        of
        Reassessment]
        to
        the
        Plaintiff's
        prejudice.