§ Contractor calculator · Freelance Software Developer
Freelance Software Developer
take-home calculator.
Software developers contracting independently — full-stack, backend, frontend, mobile. Common rate range £400–£700/day depending on stack and seniority. Niche stacks (Rust, Go, Solidity) can command premium rates.
§ Quick answer — typical £500/day rate
At £500/day (5 days × 46 weeks = £115,000 gross), the most tax-efficient structure is permanent salary at £74,257 net annual — effective tax rate 35.43%.
- Outside IR35 (Ltd)
- £72,293/yr
- Inside IR35 (Umbrella)
- £68,105/yr
- Permanent salary
- £74,257/yr
High demand, especially for AI-augmented development. Most engagements run through agencies — IR35 status varies.
§ Try your own rate
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