Official fee-sponsorship explainer
Solana never stops charging a network fee. On an eligible direct send, NOVA can place a separate sponsor account first as fee payer, show the original SOL cost as sponsored, and let the sender authorize the transfer without spending SOL on that fee.
Signing flow
The route must be a positive-value, default Solana transfer. NOVA can choose sponsorship automatically when the available SOL is at or below its current 0.003 SOL safety threshold, or honor an explicit gasless preference when the route qualifies.
NOVA builds an unsigned transfer with the configured sponsor first in signer order. The sponsorship service replaces that placeholder with a provider-backed fee payer and signs only its fee-payer role.
The wallet validates the sponsored response against the original transaction, expected signer positions, and wallet address. The user then authenticates and signs before submission.
Eligibility contract
| Route | Current source behavior | Important limit |
|---|---|---|
| Direct SOL send | Eligible positive-value default sends can use the sponsor as fee payer. | Provider and policy availability still apply. |
| Classic SPL token send | Eligible sends can be sponsored. The sponsor can also fund one missing classic associated token account for the recipient. | The token metadata and sender account must be present. |
| Token-2022 send | Eligible only when the recipient's token account already exists. | NOVA does not generalize classic token-account sizing to Token-2022 extensions. |
| Privacy transfer | Uses its own execution path. | Excluded from the direct-send sponsorship policy. |
| Sponsored swap | A provider-built swap can name the sponsor as fee payer. | Separate economics: the ordinary disclosed swap route fee can still apply. |
| Unsupported or unavailable | An explicit gasless request fails instead of silently claiming sponsorship. | Use a normal paid route only after reviewing the updated fee and transaction. |
Fee disclosure
NOVA keeps the estimated SOL network cost visible and struck through when a direct send is sponsored.
The current direct-send contract reports 0 SOL, no added NOVA service fee, and the full requested recipient amount.
Current source config sets the ordinary NOVA swap route fee at 0.5% and accepts bounded provider-declared values up to 2%. Sponsorship does not erase that disclosed trading fee.
Evidence and corrections
This page was derived from the current NOVA 4.2.0 sponsorship policy, Solana transfer builder, sponsor client, response validator, confirmation disclosure, and focused source tests. Source inspection supports intended behavior; it is not a production-wallet signature, provider acceptance, broadcast, finality proof, fee audit, or promise of future availability.
This page applies only to NOVA - Solana Wallet, App Store ID 6753857720, bundle ID com.novawallet.ios, published by 404 ENTERPRISES, LLC—not the separate product at docs.novawallet.io.
Send factual corrections to hi@nshield.org. Never include a recovery phrase, private key, PIN, or signing payload.