R&D Tax Refund Calculator — Tobbie Capital Advisory
An estimate only — but an honest one. Enter your situation and see the indicative benefit range under the R&D Tax Incentive.
The Calculator
Your indicative benefit.
Assumes 100% of entered expenditure qualifies (most claims include some non-eligible spend; we assess the eligibility rate in the free review). Estimates use current 2025-26 settings: refundable offset 43.5% for eligible companies under $20M turnover; the 18.5% net benefit applies after tax add-back for companies in profit. Larger companies: tiered non-refundable offsets (8.5% / 16.5%). This is general information, not tax advice.
"The largest calculation error is over-claiming eligible spend. The second largest is not claiming at all."
Next Step
Turn the estimate into a claim.
Free eligibility review — we assess the eligibility rate properly and quote a fixed fee.
