What Is a Software AMC? Annual Maintenance Contracts Explained

Software AMC in one sentence

A software Annual Maintenance Contract is a paid agreement where a vendor keeps your applications running — fixing bugs, applying updates, monitoring health, and responding to incidents under defined SLAs for a fixed period (usually 12 months).

It is different from hardware AMC (computers, printers, UPS). Software AMC covers code, databases, integrations, and the operational work that keeps users productive.

What a good software AMC includes

Strong contracts spell out four kinds of work. If a proposal only says “support,” push for this breakdown.

• Corrective — fix defects and restore service after incidents
• Preventive — patches, dependency updates, backup checks, health reviews
• Adaptive — keep the system working when OS, browsers, or APIs change
• Perfective — small usability and performance improvements within a monthly budget

When Sri Lankan businesses need an AMC

You need a software AMC when the system is business-critical, the original developers are gone, or ad-hoc freelancers cannot commit to response times. Common triggers: a failed go-live handoff, rising downtime, audit findings, or a vendor that disappeared after warranty.

If the product is still changing weekly, you may need a development retainer plus AMC — or a dedicated team — rather than maintenance alone.

How software AMC is priced

Typical models: a percentage of build cost (often 15–25% per year), a monthly retainer based on ticket volume and severity tiers, or a hybrid with a base fee plus capped enhancement hours.

Cheap AMCs that exclude monitoring, security patches, or after-hours critical incidents are not bargains — they shift risk back to you.

Questions to ask before you sign

Ask for severity definitions, response vs resolution times, what happens when monthly enhancement hours are used up, who owns the code and credentials, and how knowledge is documented if the vendor changes.