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Finance · Interactive demo

Job Offer True Value Calculator

Which offer actually pays more? Enter the details and get the real net comparison — PAYE tax, AA travel rate, and benefits included.

This is a worked example — the numbers below show exactly what the calculator produces. To run it with your own numbers, enter them in the form below and use your Anthropic API key for a live response. Or, open Claude free and paste the prompt at the bottom of this page.
Example output — R28,000 vs R24,000
Offer A (R28,000) Offer B (R24,000)
Gross salary R28,000 R24,000
PAYE deduction (est.) −R5,600 −R4,440
UIF −R148 −R148
Net take-home R22,252 R19,412
Monthly travel cost (AA rate @ R4.50/km) −R8,910
45km × 2 × 22 days		 −R1,584
8km × 2 × 22 days
True net monthly value R13,342 R17,828 ✓
Verdict: Offer B is R4,486/month better in actual money in your pocket — despite paying R4,000 less on paper. Plus approximately 74 fewer minutes of commuting per day.
Three questions to ask before deciding:
  1. Does Offer A's travel cost qualify for any tax deduction (e.g. if it's to multiple sites)?
  2. Is the R4,000 salary gap at Offer A likely to grow faster — is there more career upside?
  3. Could the travel cost be partially offset by a company vehicle or fuel allowance not yet mentioned?

Calculate your comparison

Offer A
Offer B
Prefer to use Claude directly?

Copy this prompt and paste it into claude.ai — it's free to use.

Compare two job offers for me. Offer A: R[SALARY_A] gross, [KM_A]km from home. Offer B: R[SALARY_B] gross, [KM_B]km from home. Calculate: PAYE tax for both using current South African tax brackets, AA travel cost at R4.50/km for 22 working days/month return trip. Show me the true net monthly take-home for each, the difference, and give me a clear verdict on which is actually better. Also give me 3 questions I should ask before deciding.