Partnership taxation can be tricky, especially when partners join, leave, or when partnership assets are revalued. These changes affect not only the accounting records but also the potential capital gains tax (CGT) consequences for each partner.
This section explains the key rules around admitting new partners and revaluing partnership assets, with worked examples to show how the gains are calculated in practice.
1. Joining a Partnership
When a new partner joins, capital accounts must be adjusted.
Example:
Clare and David share profits 60:40. Their office cost £100,000.
On 1 July 2024, Ewan joins with 20%. David remains at 40%, Clare reduces to 40%.
No revaluation is made.
- Clare is treated as transferring 20% of her capital interest to Ewan.
- If the property is sold later, Ewan’s base cost includes what he “acquired” from Clare.
2. Revaluation
Revaluations change the accounts but do not, by themselves, create a tax charge.
Example 1:
Anna and James are equal partners. A building bought for £100,000 is revalued to £400,000. The £300,000 surplus is credited £150,000 each.
- No CGT arises at revaluation.
- CGT only applies if profit-sharing ratios later change.
Example 2 when new partner joins:
Ella and Sophie share profits equally. Their only asset is goodwill, bought for £40,000. On 1 Jan 2024, Daniel joins with 20%. Goodwill is valued at £140,000 but not revalued in the accounts, so Ella/Sophia (56,000) and Daniel (28,000). When sold for £200,000 in Mar 2025, gains are split: Ella £64k, Sophie £64k, Daniel £32k – giving Daniel a share of value he didn’t create.
If goodwill had been revalued:
- Pre-admission increase £100k → credited £50k each to Ella & Sophie.
- Post-admission increase £60k → split £24k, £24k, £12k.
Resulting gains: Ella £74k, Sophie £74k, Daniel £12k – the fairer outcome.
Key Takeaways
Joining a Partnership
- Admitting a new partner often means existing partners transfer part of their interest.
- This is treated as a disposal for CGT purposes, even if no cash changes hands.
- The new partner’s base cost is based on the value of the interest acquired.
Revaluation
- Revaluation itself does not trigger CGT — it only affects the accounts.
- CGT arises when profit-sharing ratios change, with gains calculated on revalued values.
- Without revaluation, new partners may benefit from growth created before they joined.
- Revaluing ensures fair allocation of gains between old and new partners.
Final Thoughts
Partnerships offer flexibility, but this also makes their tax treatment more complex. Capital gains can arise not only on the sale of assets but also when partners join, leave, or when profit-sharing ratios change. Revaluations help ensure fairness between partners, but they also affect how gains are taxed in the future.
Careful planning — and clear documentation — is essential to avoid unexpected CGT liabilities and to make sure that gains are shared in line with the true economics of the partnership.
