How to Wind Up an Ontario Corporation Tax-Free (Section 88) — 12 Steps

A Section 88(1) wind-up of a taxable Canadian corporation into its Canadian corporate parent (owning at least 90% of shares) transfers all assets to the parent on a tax-deferred basis and cancels the subsidiary. Owner-managers use s.88 to simplify a group of companies, unlock ACB “bump” opportunities under s.88(1)(d), and eliminate the subsidiary’s ongoing compliance cost. This 12-step guide walks Ontario reorganizations through 2026 CRA and OBCA/CBCA requirements, from directors resolution through Article of Dissolution.

1. Step 1: Confirm eligibility for Section 88(1)

   s.88(1) applies only when: (a) the subsidiary is a taxable Canadian corporation, (b) the parent is a taxable Canadian corporation owning at least 90% of each class of issued shares immediately before wind-up, and (c) all shares not held by the parent are held by persons at arm’s length. If the 90% test is missed, s.88(2) applies with less favourable tax results. Confirm the share register supports the 90% test at the effective wind-up date.

2. Step 2: Do a pre-wind-up FMV and ACB inventory of subsidiary assets

   Prepare a schedule of every subsidiary asset: cost, ACB, UCC (for depreciable), FMV, and tax attributes (SR&ED pool, non-capital losses, capital losses, GRIP, CDA). This schedule drives the s.88(1)(d) bump analysis, the parent’s post-wind-up ACB, and CRA’s clearance certificate review.

3. Step 3: Calculate the potential Section 88(1)(d) ACB bump

   The subsidiary’s non-depreciable capital property can have its ACB “bumped up” in the parent’s hands under s.88(1)(d), limited to (a) the parent’s ACB in the subsidiary shares immediately before wind-up minus (b) the subsidiary’s net tax pools. The bump is often the primary reason to do a s.88 wind-up — it steps up the ACB of Newco shares, marketable securities, or land held by the subsidiary. Model with your CPA before proceeding.

4. Step 4: Review safe-income, GRIP, CDA, and loss carryforwards

   The subsidiary’s tax pools flow to the parent under s.88(1)(e.2) generally: non-capital losses, net capital losses, RDTOH, GRIP/LRIP, and Capital Dividend Account balances all transfer subject to grinds and timing rules. Some pools are lost — verify SR&ED ITC eligibility for continuity under s.87(2)/s.88 provisions.

5. Step 5: Board and shareholder resolutions

   Both parent and subsidiary boards pass resolutions authorizing wind-up. The subsidiary sole shareholder (the parent) approves the plan of wind-up. The resolution specifies: effective wind-up date, transfer of all assets to parent, assumption of all liabilities by parent, and cancellation of subsidiary shares. Update minute books contemporaneously.

6. Step 6: Prepare the wind-up statement of assets and liabilities

   Prepare a final balance sheet of the subsidiary at the wind-up date. Every asset and liability transfers to the parent at the FMV or elected amount. Draft an asset transfer agreement listing each item, ACB/UCC, elected amount, and treatment. This agreement supports the T2 short year filings and CRA review.

7. Step 7: File CRA elections and forms

   File Form T2057 (if s.85 is used for specific assets alongside the s.88 wind-up) and other applicable elections. For the s.88 wind-up itself, no separate election form — the wind-up is legally effected by resolution and asset transfer. Attach a s.88 wind-up schedule to the subsidiary’s final T2 explaining the transaction.

8. Step 8: File the subsidiary’s final short-year T2 and HST returns

   The subsidiary’s final tax year ends on the wind-up date. File a short-year T2 within 6 months. Include the wind-up schedule, final financial statements, and cancellation of all outstanding CRA accounts (RC, RT, RP, WSIB, etc.). File final HST returns and de-register the RT account.

9. Step 9: Obtain the CRA Clearance Certificate (TX19)

   Under s.159(2), the parent (as legal representative of the wound-up subsidiary) should request a Clearance Certificate on Form TX19 before distributing the final assets. The Clearance Certificate confirms CRA has no outstanding tax claims against the subsidiary and protects the parent’s directors from personal liability under s.227.1.

10. Step 10: File Articles of Dissolution (OBCA or CBCA)

    File Form 10 (OBCA Articles of Dissolution) or Form 17 (CBCA Articles of Dissolution) with the applicable registrar. Requires the CRA Clearance Certificate for CBCA filings. Ontario Regulation now requires proof of tax compliance before dissolution. Dissolution completes 1-4 weeks after filing.

11. Step 11: Update parent’s books and post-wind-up records

    The parent records the transferred assets at their elected amounts, adjusts ACB per s.88(1)(d) bump, records the cancelled subsidiary investment, and updates its own minute book. Update HST/RT registrations if the subsidiary was consolidated into the parent’s BN. Notify banks, insurers, and vendors of the change.

12. Step 12: Retain wind-up documentation for CRA review

    CRA can reassess wind-up transactions within the normal reassessment period (three years for a CCPC) and indefinitely if misrepresentation is alleged. Retain the plan of wind-up, transfer agreements, T2057 elections, s.88(1)(d) bump calculation, Clearance Certificate, and articles of dissolution together for at least seven years.

Frequently Asked Questions

What is the 90% ownership test for Section 88(1)?

The parent corporation must own at least 90% of each class of issued shares of the subsidiary immediately before wind-up. Shares held by non-arm’s-length persons other than the parent do not count toward the 90%. If 90% is not met, s.88(2) applies with less favourable tax treatment.

How long does a Section 88 wind-up take?

Typically 4-8 months from board approval to Articles of Dissolution: 2-3 months to complete the final T2, HST returns, and file the TX19 Clearance Certificate request; 3-6 months for CRA to issue the Clearance Certificate; 2-4 weeks for Articles of Dissolution to process.

What is a Section 88(1)(d) bump?

It is an increase to the parent’s adjusted cost base of non-depreciable capital property received on wind-up. The bump equals (parent’s ACB in subsidiary shares) minus (subsidiary’s net tax pools), spread across the property. Used to step up the ACB of Newco shares or land inside the subsidiary before a future sale.

Do the subsidiary’s losses transfer to the parent?

Yes, non-capital losses and net capital losses flow to the parent under s.88(1.1) subject to acquisition-of-control rules and grinds. GRIP, RDTOH, and CDA balances transfer at s.88(1)(e.2). SR&ED pools require careful continuity analysis.

Do I need a CRA Clearance Certificate to wind up?

Best practice: yes. Under s.159(2), a legal representative distributing assets without clearance is personally liable for outstanding tax debts of the wound-up entity. Requesting Form TX19 protects directors and shareholders from personal exposure.

Authoritative Sources

• CRA — Form TX19 Asking for a Clearance Certificate
• CRA — Income Tax Folio S3-F1-C1 Corporate Wind-ups
• Corporations Canada — Dissolve a corporation

Expanded technical guidance

Common pitfalls in a s. 88 windup

• Missing 90% ownership test. s. 88(1) tax-free rollup requires parent to own 90%+ of subsidiary shares of each class immediately before windup. Falling below 90% converts the windup to a taxable disposition under s. 84(2).
• Bump denial on non-depreciable capital property. The s. 88(1)(d) cost-base bump is denied on property that was owned by any non-arm’s-length person during a 3-year lookback. Review acquisition history carefully.
• Failing to file windup notice. Subsidiary’s final T2 must be filed within 6 months of dissolution date; parent must include Schedule 24 (Wind-up Under Subsection 88(1)) in its T2 for the year the windup completes.

Forms, filings, and deadlines

Subsidiary files final T2 Corporation Income Tax Return for the short taxation year ending on dissolution date (6 months after year-end). Parent files Schedule 24 (Wind-up Under Subsection 88(1)) with its T2 for the year including the windup. Ontario Business Registry: file Articles of Dissolution (Form 10 under Business Corporations Act) or federal Articles of Dissolution under CBCA. Prior to dissolution, obtain a CRA Clearance Certificate (Form TX19) to protect directors from post-dissolution CRA claims. Reference: Income Tax Folio S4-F7-C1 (Amalgamations of Canadian Corporations) and IT-126R2 (Meaning of Winding-up).

Worked example — Holdco winds up wholly-owned Opco

Holdco owns 100% of Opco. Opco has ACB $500K of goodwill and FMV $1M. Under s. 88(1)(a), goodwill rolls to Holdco at ACB ($500K), no gain triggered. Under s. 88(1)(d), Holdco may bump ACB of non-depreciable capital property (e.g., land held by Opco) up to FMV, capped at Holdco’s ACB of Opco shares less already-rolled property. Bump is denied on any property acquired from a non-arm’s-length person in prior 3 years.

Worked example — clearance certificate delay

Parent files TX19 clearance request December 2026; CRA typically takes 4-6 months to issue. Dissolution filed with province in advance of clearance risks director liability if CRA later assesses. Recommended sequence: (1) file final T2 and RC145 dissolution intent, (2) submit TX19, (3) wait for clearance letter, (4) then file provincial Articles of Dissolution.

Worked example — s. 88(2) taxable windup (85%-owned sub)

Parent owns 85% of sub (fails 90% test). Windup treated under s. 88(2): deemed dividend to parent to extent of paid-up capital + CDA, capital gain/loss on balance. This can be preferable if sub has large CDA balance (tax-free capital dividend on windup) but generally results in more tax than s. 88(1) rollup.

Related Insight resources

Section 88 wind-ups are often preceded by an estate freeze — walk through how to execute an estate freeze to confirm the sequencing. If the corporation being wound up holds appreciated shares that transfer to a parent Holdco, follow up with the s. 85 rollover playbook. For post-wind-up capital gains planning, review the LCGE multiplication pillar and the 2026 capital gains inclusion rate pillar.