Simple, honest pricing
Start free. Upgrade when you’re ready. £5/month or £50/year.
Free
Get started with the essentials. No credit card required.
- Create & send invoices
- Create & send CP12 certificates
- Gas rate calculator
- Pipe sizing calculator
- Basic calendar
Monthly
All features, no limits. Cancel anytime.
- Everything in Free
- Unlimited job notes with photos
- Full calendar with reminders
- Priority support
- Early access to new features
- Cloud backup
Yearly
Best value if you use GasTac all year.
- Everything in Monthly
- 2 months free vs monthly
- One payment for the year
- Priority support
- All updates included
No lifetime plan anymore just simple monthly or yearly pricing.
Frequently asked questions
Is GasTac really free to use?
Yes. The free plan gives you access to invoicing, CP12 certificates, and both calculators. No credit card needed.
What’s included in the paid plans?
Monthly and Yearly include everything: unlimited job notes with photo uploads, full calendar with reminders, priority support, cloud backup, and early access to new features.
Can I cancel the monthly plan?
Yes — cancel anytime with no penalties. You’ll keep access until the end of your billing period.
Is there a yearly option?
Yes — it’s £50 per year (that’s like getting 2 months free compared to paying monthly).
Is my data secure?
Yes. Your data is encrypted and stored securely. We take data protection seriously and comply with UK GDPR regulations.