Tax report — FY 2025–26
Sarah’s 329 trades, converted to NZD and run through the NZ rules for the year.
Taxable income
$114,664.30
trading + salary combined
Total tax liability
$28,212.11
24.2% effective · 33% marginal
Set aside for tax
$20,154.61
excludes PAYE already deducted
Income Summary
Gross trading gains
187 winning trades
$91,664.67
Gross trading losses
142 losing trades
-$57,137.97
Net trading P&L
$34,526.70
Less deductible expenses
9 items across 7 categories
-$4,862.40
Net trading income
$29,664.30
Other income (salary)
already taxed at source under PAYE
$85,000.00
Combined taxable income
$114,664.30
Income Tax Calculation
$0 – $15,600
$15,600.00 taxable in bracket
$1,638.00
$15,601 – $53,500
$37,900.00 taxable in bracket
$6,632.50
$53,501 – $78,100
$24,600.00 taxable in bracket
$7,380.00
$78,101 – $180,000
$36,564.30 taxable in bracket
$12,066.22
Income tax subtotal
$27,716.72
ACC earner levy (1.67%)
on trading income, capped at $152,790 liable earnings
$495.39
Total tax liability
$28,212.11
Each slice of income is taxed at its own rate — not the top rate on the whole lot.
Provisional Tax Instalments
Last year’s residual income tax was over $5,000, so IRD expects tax in advance this year — in three instalments, using the standard uplift method.
First instalment
$3,290.00
due 28 August 2025
Second instalment
$3,290.00
due 15 January 2026
Third instalment
$3,290.00
due 7 May 2026
Miss one and IRD charges use-of-money interest from the due date. This is the single most common surprise for traders in their second profitable year.
Deductible Expenses
Home Office
$1,560.00
Platform
$719.40
Equipment
$684.00
Data Feeds
$540.00
Education
$489.00
Accounting
$450.00
Vps Hosting
$420.00
Total claimed
$4,862.40
Brokerage isn’t listed separately here — commission is already netted off each trade’s P&L, so claiming it again would double-count.
Trade Stats
Closed trades
329
Win rate
187W / 142L
56.8%
Profit factor
gross profit ÷ gross loss
1.60
Average win
$490.19
Average loss
-$402.38
Largest win
$1,201.28
Largest loss
-$983.38
Every figure above can show its working
In your own account each line expands into the full derivation — the formula, the inputs and the IRD rule it comes from — so you (or your accountant) can check it rather than trust it. That, the accountant PDF and the read-only share link are in the app.
This summary is a guide only and does not constitute formal tax advice. Individual circumstances vary and tax laws change. Review with a qualified NZ tax accountant before filing. TradeLog NZ accepts no liability for errors in your tax return. See ird.govt.nz.