diff --git a/src/psbt.h b/src/psbt.h
--- a/src/psbt.h
+++ b/src/psbt.h
@@ -484,21 +484,38 @@
 
 enum class PSBTRole { UPDATER, SIGNER, FINALIZER, EXTRACTOR };
 
+/**
+ * Holds an analysis of one input from a PSBT
+ */
 struct PSBTInputAnalysis {
+    //! Whether we have UTXO information for this input
     bool has_utxo;
+    //! Whether the input has all required information including signatures
     bool is_final;
+    //! Which of the BIP 174 roles needs to handle this input next
     PSBTRole next;
 
+    //! Pubkeys whose BIP32 derivation path is missing
     std::vector<CKeyID> missing_pubkeys;
+    //! Pubkeys whose signatures are missing
     std::vector<CKeyID> missing_sigs;
+    //! Hash160 of redeem script, if missing
     uint160 missing_redeem_script;
 };
 
+/**
+ * Holds the results of AnalyzePSBT (miscellaneous information about a PSBT)
+ */
 struct PSBTAnalysis {
+    //! Estimated weight of the transaction
     Optional<size_t> estimated_vsize;
+    //! Estimated feerate (fee / weight) of the transaction
     Optional<CFeeRate> estimated_feerate;
+    //! Amount of fee being paid by the transaction
     Optional<Amount> fee;
+    //! More information about the individual inputs of the transaction
     std::vector<PSBTInputAnalysis> inputs;
+    //! Which of the BIP 174 roles needs to handle the transaction next
     PSBTRole next;
 };