  We compute and clarify the interpretation of the on-shell Euclidean action
for Reissner-Nordstr\"{o}m black holes in de Sitter space. We show the on-shell
action is minus the sum of the black hole and cosmological horizon entropy for
arbitrary mass and charge in any number of dimensions. This unifying expression
helps to clear up a confusion about the Euclidean actions of extremal and
ultracold black holes in de Sitter, as they can be understood as special cases
of the general expression. We then use this result to estimate the probability
for the pair creation of black holes with arbitrary mass and charge in an empty
de Sitter background, by employing the formalism of constrained instantons.
Finally, we comment that the decay of charged de Sitter black holes is expected
to be governed by the gradient flow of the entropy function, and that as a
consequence, as long as the regime of light, superradiant, rapid charge
emission is excluded, the effective decay may be described by the tunneling
formalism.

High Energy Physics - Theory;General Relativity and Quantum Cosmology