In Albany, the best defense is a massive campaign account.

Former state Senate Majority Leader Dean Skelos spent another $427,000 from his election war chest on criminal-defense lawyers who helped get his corruption conviction overturned, according to campaign-finance filings.

That brings his total legal-defense payments — all money he amassed in his campaign kitty — to nearly $2 million since his May 2015 indictment.

He cut a $402,236.92 check to white-collar criminal-defense firm Shapiro Arato LLP — which got his conviction overturned — on Nov. 17. He’d previously paid the firm $550,000 in January 2016.

And on Oct. 25, Skelos kicked over $25,000 to Gage Spencer & Fleming LLP — the latest in a series of payments to the firm totalling $961,678.35. That firm represented him both during his trial and appeal.

Skelos, 69, and son Adam, 33, were convicted of bribery, corruption and conspiracy in December 2015 after a jury found that the Long Island Republican strong-armed companies into paying his son more than $330,000 for a no-show job.

But Skelos got the verdict overturned on appeal.

He still has just over $415,000 left in his campaign account, which will come in handy since prosecutors plan to try him again in June.